难通过的

In this paper,some instruments with different functions are combined,and by using the motion of charged particle s in the alternating magnetic field produced with Helmholtz coils,the existence of the induced electric field can be validated directly and easily.

针对磁场变化时激发产生的感生电场很难演示的问题，设计了演示感生电场存在的实验。该实验将不同功能的仪器组合起来使用，通过亥姆霍兹线圈的交变磁场对带电粒子的作用效果，直观说明感生电场的存在

In this paper,some instruments with different functions are combined,and by using the motion of charged particles in the alternating magnetic field produced with Helmholtz coils ,the existence of the induced electric field can be validated directly and easily.

针对磁场变化时激发产生的感生电场很难演示的问题，设计了演示感生电场存在的实验。该实验将不同功能的仪器组合起来使用，通过亥姆霍兹线圈的交变磁场对带电粒子的作用效果，直观说明感生电场的存在

According to the evaporation equation, the evaporation degree of aerosol particles reaching ICP can be simulated, then we can get the value of useful mass transport rate, Wu, which is difficult to be gotten from experiment and can be used to assess the analytical performance and to optimize the operating parameters, such as solution and gas flow rate and the configurations of the nebulizer.

根据蒸发方程，可以模拟进入ICP的气溶胶粒子蒸发的程度，从而计算出实验上很难测定的有用质量传输速率Wu。本文通过Monte Carlo方法模拟了不同浓度的溶液、不同溶剂以及不同的载气流量、进样速度和雾化器的结构尺寸等变化对Wu的影响情况，并与实验结果进行比较，证明了模拟结果的可靠性，并依此选择最佳操作条件和雾化器的结构尺寸。

After orthogonal test analysis of three factors, three levels and 27 kinds of compositions,the causes of the putridity of the Rugosa rose fresh cuttings were investigated.

通过三因素三水平 2 7种组合的正交试验和分析，认为插穗腐烂病的发生是由于难生根的离体保加利亚玫瑰嫩枝插穗的抗性弱、空气和土壤的高温高湿条件所造成的；分析还表明土壤因素对保加利亚玫瑰嫩枝扦插腐烂病影响最大，其次是插穗因素和浸穗试剂，并据此提出感病率较低的 4种组合类型。

This endless "global war on terrorism"- into which both the quite justified invasion of Afghanistan and the unwinnable folly in Iraq have been folded by Pentagon decree - inevitably leads to the demonizing and dehumanizing of anyone declared by the Bush administration to be a possible terrorist: a definition that is not up for debate and is, in fact, usually made in secret.

无止尽的"对恐怖主义的全球性战争"──在五角大楼的命令中，对阿富汗的合理入侵和在伊拉克永难获胜的愚行都被包括其中必然导致对任何人进行妖魔化和非人化，只要布什政府宣称他是一个可能的恐怖分子：这是一个不容争议、而且实际上常常是秘密通过的定义。

But Mr Amte was a difficult character politically: a non-believer who rejected idol-worship, an excoriator of politicians, rich landlords, agri-business and big corporations, and above all a Gandhian of the pure, old style, who believed that economic development had to be person by person and village by village, by means as small as handwoven threads and fingerfuls of salt.

但是安特先生是个政治上很难对付的角色：一个拒绝偶像崇拜的非信仰者，一个政治家、富有地主、农业贸易和大公司的严厉批判者，并且首先是一个纯粹的、老式的甘地信仰者，相信经济发展只能是一个人一个人、一个村一个村地进行，通过手工纺的线和一小撮盐这种很小的方式。

He knew full well, from his Spencer, that man can never attain ultimate knowledge of anything, and that the mystery of beauty was no less than that of life - nay, more that the fibres of beauty and life were intertwisted, and that he himself was but a bit of the same nonunderstandable fabric, twisted of sunshine and star-dust and wonder.

通过斯宾塞他懂得人不可能获得对于任何东西的终极知识，美的奥秘并不比生命的奥秘更容易参透——不，更难——美的素质限生命的素质是互相纠结的，他自己也不过是那无法理解的素质的一个部分，是由阳光、星尘和奇迹纠结成的。

He knew full well, from his Spencer, that man can never attain ultimate knowledge of anything, that the mystery of beauty was no less than that of life - nay, more that the fibres of beauty life were intertwisted, that he himself was 8ttt8.com a bit of the same nonunderstandable fabric, twisted of sunshine star-dust wonder.

通过斯宾塞他懂得人不可能 www.ssBBww.cOm 获得 s sbb ww 对于任何 dd dtt。 com 东西的终极知识，美的奥秘并不比生命的奥秘更容易 Dddtt 参透——不，更难——美的素质限生命的素质是互相纠结的，他自己也不过是那无法理解的素质的一个部分，是由阳光、星尘和奇迹纠结成的。

In chapter 1, the progress in study of the ruthenium complex oxides. especially the coexistance of magnetism and superconductivity in 〓 and 〓 are introduced. The introduction makes conclusion that all of the Ru-1212 and Ru-1222 compounds reported are accompanied by small amounts of SrRuO〓 impurities, this is to say that, it is difficult to synthesize pure samples of these two compounds by traditional solid state reaction. So the author think that the studies for new synthesis methods of ruthenate superconductors which is beneficial to the synthesis of new type precious metals superconductivity is very important till now.

第一章重点综述了钌系复合氧化物的研究进展，特别是其中超导电性的发现及其钌系1212、1222相铜氧化物超导电性和铁磁性共存的特征，在此基础上可以看出，至今文献报道所获得的Ru-1212和Ru-1222相化合物都含有少量的SrRuO〓杂相，即很难通过原有的固相反应方法得到纯相化合物，由此作者提出，现有钌系超导氧化物合成的新方法研究仍具有重要的现实意义，这也将更有利于探索合成新型贵金属超导体。

Complicated tactic and technique combined training, move training, training for difficult techniques that are usually hard to grasped in one-on-one training, athlete's physical, mental and volitive capacity exercises, are implemented in the entire multi-ball teaching and training via the use of such 3 training means as "multi-point plus multi-ball","interactive multi-point plus multi-ball" and "single training with multi-ball", intensified training is carried out in an action specific way by means of ball supply, and the said problems are settled one by one.

教学设计理念是按照乒乓球技能形成的规律：泛化、分化、巩固、自动化4个阶段来设计多球训练方案，对乒乓球技能形成的各个阶段的学习、动作技能形成；对较复杂的技战术组合练习、步法及平时在对练中很难上手的难度技术；对运动员身体、心理、意志品质的锻炼等通过&多点多球&、&交互式多点多球&、&多球单练&3种训练手段，贯穿于整个多球教学与训练中，以供球的形式有针对性地进行强化训练并一一加以解决。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。